CVEs-PoC/2023/CVE-2023-6936.md

CVE-2023-6936

Description

In wolfSSL prior to 5.6.6, if callback functions are enabled (via the WOLFSSL_CALLBACKS flag), then a malicious TLS client or network attacker can trigger a buffer over-read on the heap of 5 bytes (WOLFSSL_CALLBACKS is only intended for debugging).

POC

Reference

No PoCs from references.

Github

• https://github.com/wolfSSL/Arduino-wolfSSL
• https://github.com/wolfSSL/wolfssl